<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        form {
            width: 500px;
            padding: 20px;
            margin: 50px auto;
            border: 3px solid pink;
            display: flex;
            flex-direction: column;
            font-size: 30px;
            padding-top: 50px;
            position: relative;
        }

        form>span {
            position: absolute;
            left: 50%;
            top: 5px;
            transform: translateX(-50%);
            width: 100%;
            text-align: center;
            color: red;

            display: none;
        }

        form>label {
            height: 50px;
        }

        form>label>input {
            font-size: 24px;
            height: 40px;
            padding-left: 20px;
        }
    </style>
</head>

<body>
    <form>
        <span class="error">用户名或密码错误！</span>
        <label for="">
            用户名：<input type="text" class="username" placeholder="请输入用户名">
        </label>

        <label for="">
            密码：<input type="password" class="password" placeholder="密码">
        </label>

        <button>登录</button>

    </form>
</body>

<script src="/web/js/login.js"></script>

</html>